Bales is one of the smartest and intuitive DFS thinkers; he asks the right questions about how to find edges at DFS, and then finds the exact data to answer those questions. This book has information that I've never seen published anywhere else: what rate lineups are cashing on DraftKings depending on what stacks they use (with separate data for cash games and GPPs, no less), how players perform vs their salary (not just versus their projection, but versus their cost, which is ultimately the most crucial thing in DFS) in different situations such as in divisional vs non-divisional games, as favorites/underdogs, in different over/unders, in different wind speeds. In a nutshell, Bales finds a bunch of significant edges and price exploitations that no one else is talking about!! As someone who gobbles up (and writes my own) DFS content, I must say this book is well worth a read if you want to become more profitable at DFS.